Can filing a bankruptcy help in get rid of first and second mortgage as well?

Yes, it can help you get rid of your second mortgage as well by filing a Chapter 13 bankruptcy. However, your debt may be treated as non priority unsecured debt.
If required, you can talk to a counsellor or a bankruptcy attorney who has sound knowledge in this area.

yes you can. File for Chapter 13 bankruptcy and you can get rid of your first and second mortgage.